US12459332B2 - Car air conditioning system - Google Patents
Car air conditioning systemInfo
- Publication number
- US12459332B2 US12459332B2 US18/470,504 US202318470504A US12459332B2 US 12459332 B2 US12459332 B2 US 12459332B2 US 202318470504 A US202318470504 A US 202318470504A US 12459332 B2 US12459332 B2 US 12459332B2
- Authority
- US
- United States
- Prior art keywords
- outlet
- inlet
- shutter
- conditioning system
- air conditioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
- B60H1/00671—Damper doors moved by rotation; Grilles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
- B60H1/00671—Damper doors moved by rotation; Grilles
- B60H1/00678—Damper doors moved by rotation; Grilles the axis of rotation being in the door plane, e.g. butterfly doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/24—Ventilating devices where the heating or cooling is irrelevant
- B60H1/241—Ventilating devices where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
- B60H1/244—Ventilating devices where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle located in the rear area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
- B60H2001/00721—Air deflecting or air directing means
Definitions
- the present invention relates to a car air conditioning system.
- the present invention relates to a car air conditioning system of the type comprising a pneumatic circuit for feeding an air flow into a passenger compartment of a vehicle; and a cooling circuit for cooling the air flow fed along the pneumatic circuit.
- the pneumatic circuit comprises a fan for generating the air flow; a manifold for feeding the air flow from the fan to the cooling circuit; and two feeding branches connected to the manifold and mounted in parallel to one another for feeding the refrigerated air flow, one into the right area of the vehicle, in particular into the area of the right rear seat, and the other one into the left area of the vehicle, in particular into the area of the left rear seat.
- Each feeding branch comprises a first pneumatic duct connected to the manifold, a second pneumatic duct having a free end communicating with the passenger compartment of the vehicle, and a three-way joint interposed between the two pneumatic ducts.
- the three-way joint has an inlet connected to the first pneumatic duct, a first outlet connected to the second pneumatic duct, and a second outlet communicating with the passenger compartment of the vehicle.
- the three-way joint further comprises a shutter mounted so as to shift between a first opening position, in which the inlet is connected both to the first outlet and to the second outlet, a second opening position, in which the inlet is connected to the first outlet and is separate from the second outlet, and a third opening position, in which the inlet is connected to the second outlet and is separate from the first outlet.
- the known car air conditioning systems of the type described above have some drawbacks mainly deriving from the fact that the three-way joint has a relatively reduced versatility and flexibility, is uncapable of selectively controlling the refrigerated air flow rate fed to the two outlets, and entails the deactivation of the fan for simultaneously locking the feeding of refrigerated air to the two outlets.
- the object of the present invention is to provide a car air conditioning system which is exempt from the drawbacks described above and which is simple and cost-effective to manufacture.
- FIG. 1 schematically illustrates, with parts removed for clarity, a preferred embodiment of the car air conditioning system of the present invention
- FIG. 2 is a plan schematic view, with parts removed for clarity, of a detail of the car air conditioning system of FIG. 1 ;
- FIGS. 3 - 6 schematically illustrate the detail of FIG. 2 in four different operating conditions.
- reference numeral 1 indicates, as a whole, a car air conditioning system comprising a pneumatic circuit 2 for feeding an air flow into a passenger compartment 3 of a vehicle; and a cooling circuit 4 of known type for cooling the air flow fed along the pneumatic circuit 2 .
- the passenger compartment 3 has a left front seat 5 for the driver, a right front seat 6 for a passenger, and two rear seats 7 for further passengers.
- the pneumatic circuit 2 comprises a fan 8 , a manifold 9 for feeding the air flow generated by the fan 8 to the cooling circuit 4 , and two feeding branches 10 connected to the manifold 9 and mounted in parallel to one another for feeding the refrigerated air flow into the area of the two rear seats 7 .
- Each branch 10 comprises a first pneumatic duct 11 connected to the manifold 9 , a second pneumatic duct 12 having a free end 13 communicating with the passenger compartment 3 at the upper area of a relative seat 7 , and a three-way joint 14 interposed between the two ducts 11 , 12 .
- the three-way joint 14 comprises a valve body 15 with a cylindrical shape provided with an inlet 16 connected to the duct 11 , with a first outlet 17 connected to the duct 12 , and with a second outlet 18 communicating with the passenger compartment 3 at the lower area of a relative seat 7 .
- the inlet 16 has a longitudinal axis 16 a , which is parallel to, in particular coinciding with, a longitudinal axis 17 a of the outlet 17 , and is transverse, in particular perpendicular, to a longitudinal axis 18 a of the outlet 18 .
- the three-way joint 14 further comprises a shutter 19 mounted within the valve body 15 for rotating around an axis of rotation coinciding with a longitudinal axis 20 of the valve body 15 .
- the shutter 19 comprises a rocker arm 21 provided with two arms 22 a , 22 b , which are arranged at an angle smaller than 180° relative to one another, and are each delimited by a respective end edge 23 , which is parallel to the axis 20 and cooperating with an inner surface 24 of the valve body 15 .
- the three-way joint 14 further comprises an actuation device 25 for shifting the shutter 19 around the axis 20 between a closing position ( FIG. 3 ), in which the inlet 16 is separate from the two outlets 17 , 18 , at least one first opening position ( FIG. 4 ), in which the inlet 16 is connected both to the outlet 17 and to the outlet 18 , a second opening position (illustrated by a solid line in FIG. 5 ), in which the inlet 16 is connected to the outlet 17 and is separate from the outlet 18 , and a third opening position (illustrated by a solid line in FIG. 6 ), in which the inlet 16 is connected to the outlet 18 and is separate from the outlet 17 .
- the three-way joint 14 is further provided with a limit stop element 26 , which protrudes within the valve body 15 from the surface 24 for stopping the shutter 19 in the closing position ( FIG. 3 ) and in the third opening position ( FIG. 6 ).
- the inlet 16 , the outlets 17 , 18 , and the shutter 19 are arranged and configured to allow the shutter 19 to shift:
- the car air conditioning system 1 has some advantages mainly deriving from the fact that the inlet 16 , the outlets 17 , 18 , and the shutter 19 are arranged and configured to allow the three-way joint 14 to selectively control the refrigerated air flow rate fed to the two outlets 17 , 18 when the shutter 19 is arranged in one of the opening positions and to prevent the feeding of refrigerated air to the two outlets 17 , 18 when the shutter 19 is arranged in the closing position.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
-
- to a plurality of first opening positions (illustrated by a solid line and by a dashed line in
FIG. 4 ), in which the shutter 19 selectively controls the refrigerated air flow rate fed to the outlet 17 and to the outlet 18; - to a plurality of fourth opening positions (one of which is illustrated by a dashed line in
FIG. 5 ), in which the arm 22 a prevents the refrigerated air flow fed through the inlet 16 from reaching the outlet 18, the arm 22 b directs the refrigerated air flow fed through the inlet 16 towards the outlet 17, and the shutter 19 selectively controls the refrigerated air flow rate fed to the outlet 17; and - to a plurality of fifth opening positions (of which one is illustrated by a dashed line in
FIG. 6 ), in which the arm 22 b prevents the refrigerated air flow fed through the inlet 16 from reaching the outlet 17, the arm 22 a directs the refrigerated air flow fed through the inlet 16 towards the outlet 18, and the shutter 19 selectively controls the refrigerated air flow rate fed to the outlet 18.
- to a plurality of first opening positions (illustrated by a solid line and by a dashed line in
Claims (12)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102022000019347A IT202200019347A1 (en) | 2022-09-21 | 2022-09-21 | CAR AIR CONDITIONING SYSTEM |
| IT102022000019347 | 2022-09-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| US20240092144A1 US20240092144A1 (en) | 2024-03-21 |
| US12459332B2 true US12459332B2 (en) | 2025-11-04 |
Family
ID=84370746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/470,504 Active 2044-03-11 US12459332B2 (en) | 2022-09-21 | 2023-09-20 | Car air conditioning system |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US12459332B2 (en) |
| EP (1) | EP4342697A1 (en) |
| IT (1) | IT202200019347A1 (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902181A (en) | 1998-05-01 | 1999-05-11 | Chrysler Corporation | Diverter valve assembly for an automobile HVAC system |
| EP1205321A2 (en) * | 2000-11-10 | 2002-05-15 | Volkswagen Aktiengesellschaft | Ventilation and air conditioning apparatus for a motor vehicle |
| US20030066299A1 (en) * | 2001-10-09 | 2003-04-10 | Shinji Aoki | Vehicle air conditioner with adjusting function based on sunlight amount |
| FR2844483A1 (en) | 2002-09-17 | 2004-03-19 | Denso Corp | Vehicle heater has butterfly valve which controls flow of air to outlet directed towards feet or outlet directed towards face and which can be moved to position where air flows from both outlets simultaneously |
| GB2461287A (en) * | 2008-06-26 | 2009-12-30 | Land Rover Uk Ltd | A balanced flow air conditioning system |
| US20140048227A1 (en) * | 2010-10-14 | 2014-02-20 | Masakazu Saitou | Vehicle air conditioning device |
| US20170174040A1 (en) * | 2015-12-16 | 2017-06-22 | Atieva, Inc. | Vehicle Heat Exchanger Air Flow Control System |
| JP2019167008A (en) | 2018-03-23 | 2019-10-03 | 株式会社ケーヒン | Air conditioner for vehicle |
| US20200148030A1 (en) | 2018-11-09 | 2020-05-14 | Calsonic Kansei North America, Inc. | Vehicle hvac zone assembly |
| DE102020119404A1 (en) | 2019-07-29 | 2021-02-04 | Ford Global Technologies, Llc | DEVICE AND METHOD FOR CONTROLLING THE AIR DISTRIBUTION IN AN HVAC SYSTEM |
-
2022
- 2022-09-21 IT IT102022000019347A patent/IT202200019347A1/en unknown
-
2023
- 2023-09-20 US US18/470,504 patent/US12459332B2/en active Active
- 2023-09-20 EP EP23198489.9A patent/EP4342697A1/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902181A (en) | 1998-05-01 | 1999-05-11 | Chrysler Corporation | Diverter valve assembly for an automobile HVAC system |
| EP1205321A2 (en) * | 2000-11-10 | 2002-05-15 | Volkswagen Aktiengesellschaft | Ventilation and air conditioning apparatus for a motor vehicle |
| US20030066299A1 (en) * | 2001-10-09 | 2003-04-10 | Shinji Aoki | Vehicle air conditioner with adjusting function based on sunlight amount |
| FR2844483A1 (en) | 2002-09-17 | 2004-03-19 | Denso Corp | Vehicle heater has butterfly valve which controls flow of air to outlet directed towards feet or outlet directed towards face and which can be moved to position where air flows from both outlets simultaneously |
| US20040069483A1 (en) * | 2002-09-17 | 2004-04-15 | Takuya Natsume | Air direction changing system for vehicular air ducts |
| GB2461287A (en) * | 2008-06-26 | 2009-12-30 | Land Rover Uk Ltd | A balanced flow air conditioning system |
| US20140048227A1 (en) * | 2010-10-14 | 2014-02-20 | Masakazu Saitou | Vehicle air conditioning device |
| US20170174040A1 (en) * | 2015-12-16 | 2017-06-22 | Atieva, Inc. | Vehicle Heat Exchanger Air Flow Control System |
| JP2019167008A (en) | 2018-03-23 | 2019-10-03 | 株式会社ケーヒン | Air conditioner for vehicle |
| US20200148030A1 (en) | 2018-11-09 | 2020-05-14 | Calsonic Kansei North America, Inc. | Vehicle hvac zone assembly |
| DE102020119404A1 (en) | 2019-07-29 | 2021-02-04 | Ford Global Technologies, Llc | DEVICE AND METHOD FOR CONTROLLING THE AIR DISTRIBUTION IN AN HVAC SYSTEM |
| US20210031591A1 (en) * | 2019-07-29 | 2021-02-04 | Ford Global Technologies, Llc | Apparatus and method for controlling the distribution of air in an hvac system |
Non-Patent Citations (1)
| Title |
|---|
| Italian Search Report for Application No. 102022000019347, Filing Date: Sep. 21, 2022; Date of Mailing: Apr. 21, 2023, 6 pages. |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4342697A1 (en) | 2024-03-27 |
| IT202200019347A1 (en) | 2024-03-21 |
| US20240092144A1 (en) | 2024-03-21 |
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